How-to · Quote pages
Market Data Subscriptions: What Professional Traders Need
Start with streaming consolidated Level 1 quotes and add depth, options, futures or news only where the strategy reads them. At professional rates, every unused feed is money gone each month.
The short version · about 20 minutes
- Write down which instruments and sessions your strategy trades
- Start with streaming consolidated Level 1 quotes for US stocks
- Add depth, options or futures data only where the strategy reads it
- Price every layer as a monthly line item and total the bill
- Cut duplicate feeds and ask about fee waivers tied to trading activity
- Confirm your subscriber status and the billing terms before you sign
Line one on a professional trader’s data bill should be consolidated Level 1: the best bid, best ask and last sale for US stocks, gathered from every exchange and streamed live. Everything after that depends on how you trade. Depth of book pays for itself if you trade thinner stocks intraday and read the order book before you enter. Options data matters if you trade options. Futures, news and fundamentals are separate products, billed separately, and each belongs on the list only when the strategy uses it. Professionals pay the higher exchange fee tier, so an idle feed costs more than it would at non-professional rates.
Know the layers before you price them
Market data is sold in pieces. The real-time market data guide walks through delayed and live quotes, Level 1 and Level 2, and consolidated and single-exchange feeds in detail. For budgeting, the pieces line up like this:
| Layer | What you get | Usually needed by |
|---|---|---|
| Delayed or real-time | Prices after a lag, or as they happen | Anyone acting intraday needs real-time |
| Snapshot or streaming | One quote per request, or every update pushed | Active traders stream; slower styles can snapshot |
| Level 1 or depth of book | Best bid and ask only, or orders at each price beyond them | Depth for intraday trading in thin names |
| Consolidated or direct | All exchanges merged by the securities information processors, or one venue’s own feed | Consolidated as the base; direct feeds for speed or full venue depth |
| Options (OPRA) | Quotes and trades from the US options exchanges | Options traders |
| Futures | Data from the futures exchanges, licensed on its own | Futures traders, and some who watch index futures |
| News and fundamentals | Headlines, filings data, estimates, transcripts | Depends on the research process |
The consolidated feed runs under the CTA and UTP plans. OPRA plays the same role for options. Futures exchanges license their own data, so futures quotes are a separate subscription from stock quotes, and news and fundamentals come from separate products again, often from a separate provider altogether.
The split between consolidated and direct feeds matters most for depth. The consolidated feed carries each exchange’s best quote and the best bid and offer across all of them, which is what Level 1 needs, while the full stack of orders resting on any one venue only appears on that venue’s own depth product, so a trader who wants to see the whole book on a particular exchange has to buy it from that exchange.
A snapshot quote is fetched when you ask for it and then sits still. How snapshots are billed depends on the plan. Check the terms before assuming they are the cheap option.
Match the subscription to how you trade
Intraday equities trader
Streaming consolidated Level 1 is the floor. Add depth of book if you trade stocks with thin books and size your orders by what is resting at each price. A direct feed from a single exchange makes sense when your method depends on seeing that venue’s full book or on shaving delay. Most hand traders don’t need one.
If you trade the premarket or after the close, confirm that every feed on the list carries those sessions and labels them, because a quote that stops updating at the close looks exactly like a quiet market until you try to trade against it.
Options trader
You need OPRA data for the contracts and real-time Level 1 on the underlying stocks, because a stale underlying price throws off every option value on the screen. Depth on the underlying is rarely worth it here. Skip it unless you also trade the stock itself intraday.
Swing trader
Live Level 1 during the hours you place orders covers most of it. Snapshot quotes may be enough if you enter with limit orders and check positions a few times a day. Scans can run on end-of-day data.
Investor who reports to clients
Registration makes you professional, whatever your holding period. The status rules are set out in professional or non-professional status for market data. Your needs lean toward reliable Level 1, fundamentals and news. The research and the client reports draw on financial statements, filings data and estimates far more than on the order book, so the fundamentals product is often the line worth spending on. Depth rarely earns its fee for this kind of work.
Price every layer as a line item
Write each feed down as a monthly cost, total it, and compare the total with what the trading is meant to earn.
Put the total next to commissions and platform fees, because together they set the hurdle the strategy has to clear every month before any of the profit is yours, and a hurdle that creeps up a feed at a time is easy to miss when each line looks small on its own.
The data bill is also fixed. It arrives in full during a losing month. A trader who sets the budget against a good month’s profit will find the same feeds eating a much larger share in a flat one, so test the total against a weak month as well.
Cut what the strategy never reads
Data bills grow a feed at a time, and each of the leaks below takes a few minutes to check.
Depth nobody looks at
For two weeks, note before each entry whether you checked the book. If the answer is mostly no, cancel the depth feed and see whether your fills change.
Duplicate feeds
Data is often licensed for display on one platform at a time, so a broker platform and a separate charting platform can each bill for the same exchange quotes. List every platform you log into and the feeds attached to each. Any exchange that appears twice is a duplicate.
Waivers you never asked about
Some brokers waive or credit market data fees once an account trades above a set level of activity. The terms sit in the fee schedule. Ask, then check whether your normal month already clears the bar.
News you could read for free
A fast headline feed has its uses. The detail that moves a stock usually sits in the company’s own release, though, and the habit of reading the press release catches what a one-line headline leaves out. Companies typically webcast their earnings calls, and getting useful information from an earnings call takes a careful listen. A transcript subscription is optional.
Check before you subscribe
Run through this before you sign anything:
- Which instruments and sessions does the strategy trade?
- Is the base feed consolidated, and does it say so?
- Is it streaming or snapshot?
- Does each extra layer match something you act on?
- Does any feed duplicate one on another platform?
- Does the broker waive fees with trading activity?
- Is your subscriber status declared correctly?
- When does billing start, and how do you cancel?
Any question still open is one to put to the provider before the first bill arrives.
Related questions
Is a direct exchange feed faster than the consolidated feed?
A direct feed skips the consolidation step, so it can reach you sooner. For someone placing orders by hand, the gap is unlikely to decide a trade. Firms running automated strategies on short horizons care about it far more.
Do prop firm traders pay for their own market data?
Each firm sets its own arrangement. Some supply the data, others pass the cost through to the trader, and the agreement may also decide your subscriber status. Ask before you sign.
Do stock traders need futures data?
Not to place stock orders. Some equity traders watch index futures before the open for a read on sentiment, which is a choice about method. If you never act on what the futures show, skip the feed.
How often should a data subscription list be reviewed?
Whenever the strategy changes, and on a fixed schedule in between, such as each quarter. Compare each feed against what you actually used since the last review and cancel what sat idle.